81077000587 has 8 divisors (see below), whose sum is σ = 88451192880. Its totient is φ = 73703400960.

The previous prime is 81077000527. The next prime is 81077000611. The reversal of 81077000587 is 78500077018.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 81077000587 - 2²⁷ = 80942782859 is a prime.

It is a pancake number, because a pancake can be divided into 81077000587 parts by 402683 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81077000527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167043 + ... + 435955.

It is an arithmetic number, because the mean of its divisors is an integer number (11056399110).

Almost surely, 2^81077000587 is an apocalyptic number.

81077000587 is a deficient number, since it is larger than the sum of its proper divisors (7374192293).

81077000587 is a wasteful number, since it uses less digits than its factorization.

81077000587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296333.

The product of its (nonzero) digits is 109760, while the sum is 43.

The spelling of 81077000587 in words is "eighty-one billion, seventy-seven million, five hundred eighty-seven", and thus it is an aban number.